NFCKEY — a lock that approaches security the same way you do

NFCKEY — a lock that approaches security the same way you do

NFCKEY is a smart lock for short-term rentals, designed with security as its core principle. One-time digital keys, NFC-based access without internet connectivity, and banking-grade data protection — a comprehensive solution that addresses the key risks faced by property owners.

Evgeniya Vishnevskaya
securityshort-term rentals

"What if former guests made a copy of the key?"

"What if I forgot to change the access code after the last stay?"

"Who is inside my apartment right now?“

If you rent out property on a short-term basis, these questions have likely crossed your mind at least once. And that is perfectly natural. In short-term rentals, security is one of the most vulnerable aspects.

We understand these concerns. That is precisely why NFCKEY was not created as “just another smart lock”, but as a thoughtfully engineered solution that systematically addresses the core security risks of short-term rentals.

Below are the three most common problems — and how we solve them.

1. Keys and access codes that can be copied or shared

Physical keys are easily lost or duplicated. Access codes for electronic locks are often forwarded to friends or “kept just in case”.

Our solution — one-time digital keys

The guest receives the key directly on their smartphone. It is valid for a strictly limited period and can be used only once. Immediately after the door is opened, the key becomes invalid — similar to a one-time password in a banking application.

Even if such a key were theoretically intercepted, it would be worthless: reopening the door with it is impossible.

What does this mean for you?
You eliminate the risk of uncontrolled access entirely. One key — one entry. No copies. No exceptions.

2. Lock hacking via the internet or Bluetooth

Many “smart” locks are vulnerable to remote attacks — through internet connections, Bluetooth exploits, or connection spoofing.

Our solution — NFC and the “distributed secret” principle

To unlock the door, the smartphone must be physically brought close to the lock. Remote attacks are eliminated by design. Moreover, generating a valid access key requires coordination between three independent components: the lock itself, the server, and the guest’s smartphone. Even if an attacker compromises one of these elements, it is insufficient to create a functioning key.

What does this mean for you?
Peace of mind. Successfully attacking this lock would require a combination of advanced hacking skills, physical intrusion capabilities, and criminal intent — making such an attack impractical, costly, and ultimately pointless.

3. “What’s inside?” — firmware vulnerabilities and data privacy

Software security and data confidentiality are just as critical as physical access control.

Our solution — banking-grade protection

Firmware integrity
The lock cannot be re-flashed remotely. Any modification is possible only with physical access from inside the apartment. Attempts to tamper with the lock’s housing are recorded in the event log.

Data confidentiality
We store only the minimum amount of data required, using secure Yandex Cloud infrastructure that complies with international security standards. You see only what truly matters: who accessed the door, when, and from which device.

What does this mean for you?
Transparent control and full awareness. You always know what is happening with your property — without compromising the privacy or security of your personal data.